Producer-gas apparatus.



J. M. W. KITCHEN. PRODUCER GAS APPARATUS. APPLICATION rxLBD mma, 1909,

4 SHEETS-SHEET 1.

Patented Nov. 7, 191.1.

Inventor m Atty J. M. W. KITCHEN.

PRODUCER GAS APPARATUS.

kPPLIcATIoH rum mns, 1909.

Patented Nov. 7, 1911.

4 IIEBTS-SHEET 42.

In ien tor Atty J. M. W. KITCHEN. A PRODUCER GAS LTFARATUS. ArrmcnmnFILED una, 1909,

1,008,274. Patented Nov. 7, 1911- Q f d L J. M.' W. KITCHEN. PRODUCERGAS APPARATUS.

i Patented NOV. 7, 1911.

l APPLICATION FILED MARA?. 1909.

l1l SHEETS-SHEET 4.

Inventor est:

check the draft through the producer when desired, and for keeping theburner B cool.

B3 is an air inlet valve. B* is a compressed gas ronduit. I5 B5 is a gasconduit from the tank X.

BG is a heat refractory lining. B is an air conduit. Bs is a gaslighting aperture. C is a primary heat inten-.hanger for heating air,steamand exhaust gaseous products of combustion.

C is a non-conducting lining. C2 (Fig. 1) is a cast ironheat-interchanging device.

C3 (Fig. 1) is a conduit for conducting pre-heated air, superheatcdsteam, and gaseous products of combustion into the base of the gasproducer.

C* is an outlet for partially cooled producer gas.

' C? is an explosion relief lid.

D is a gas-cooler and steam generator. D1 is a. steam dome. D2 is a hotwater outlet. D3 is a hot-gas inlet.

D* is a feed water chamber. D5 is a feed Water inlet. Ds is a cooled gasoutlet. D1 is a steam outlet. Ds are heating tubes. E is a scrubber. Fis an .air blower. F1 is a hot-air conduit.

G is a gas exhauster and compressor.

H is a Water cooler and air heater for cooling jacket-Water and heatingair. I is an internal combustion engine.

J is a gas burning vdevice for auxiliary heating purposes.

K is a heat economizing boiler. L is a steam engine. M is a condenser. N`is an exhaust steam conduit. N1 is a compressed air duct.

N2 is a duct for gaseous products of combustion.

N3 is a gas main.

N* is a three-way mixing device for compressed air, steam or exhaustgases.

5 O is a shaft. Y

P is a drive-pulley. P1 is a friction clutch. P2 are belts. Q, is adynamo. R is the sub-base of the producer.

R1 is a shoveling surface for the removal\l A of ashes..

S is a tire-brick lining. T is a fuel feeding cylinder. 5 T1 is anon-conducting easement for the fuel feeding cylinder.

U is a non-conducting plaque. Ul are poke hole openings in the plaque U.

U2 are revolving slides for covering the openings U?.

U3 are handles to actuate the sliles U2. U are poke hole openings. U5 isa metallic frame in the plaque U.

V is the top plate of the producer' base. V1 is an annular flange. (Fig.2.) V2 are dead half-rings. V 3 are projections on which the half-ringsrest.

V 4 is the halting surface of top V. V5 is an annular llange. VG topflanges to sides. (Fig. l.)

)V isA a gas conduit for cool gas leading into the upper part of theproducer. (Seev Fig. 8.)

)Vl is a cool gas passage to interior of gas exit duct )V )V2 gas duct..)V3 gas exit aperture. )V non-conducting incasement to gas duct T2. Yannular fuel-feeding chamber@ )V0 non-conducting plaque.- )VT fuelfeeding magazine. )Vs exit. duct. )V9 gas traversing duct in therefractory lining of the producer. )V0 gas passages leading to the gasduct )V2 X is a storage tank.

Y is a grate frame.

Y1 are retaining blocks.

Y3 are side plates of grate flange support in grate frame. grate frame.

Z is a grate bar shaker arm. Z1 shaker bar. Z2 transverse support foratuating shaft.

Z3 is a shaft rocker sleeve and arm.

Z4 is a link.

Z5 is a retaining sleeve.

Z*3 is a rocker sleeve for engagement. with the handle A3.

Z'T is a plan of a grate bar.

Za are grate bars 1n elevation.

Z is a rocker bar.

Zc is a hase of support for actuating shaft.

Zd is a bell crank shaking device.

Aa is an actuating shaft. Ab is another base of support for the shaftA".

In further description:

The producer basa-It is desirable to frame. Y* Y6 legs of ,y have theash-bed of the burning fuel rest on a grate or ash-table, from Wluch theashes can be frequently dislodged downwardly, in order to keep theash-bed of a uniform thickness, and the production of gas uniform inquantity and quality. The strucure supporting the ash-bed and thesuperimposed fuel mass should differ in form according tov the nature ofthe fuel that is to hegasied. In order to secure easy access to the baseof the producer for the introduction or removal of a grate or ash-table,I construct the base of my producer in removable sections; one or 'moreof the sections being of such size that if the section is removed, thegrate or ash-table can be introduced into or removed in itsentirety fromthe base of the producer for inspection, repair or exchange, withoutdismemherment of the gmle or ash-table. The. shape nf the hase, may heannular; hui preferably should he rectangular. ln either eme the sidewalls are eonslriieled in See timel nf sullicicnt size l allow 'for theremoval of the. entire. assembled grate er a htable, which preferablywould he hehl il; :i grate-frame Y. Inamnucii as the fuel eeutainerffhnul preferably he. eonsirluzted in he forni of a eylinfler, IConstruct the tup plaie Y (see Fig. 4) el 1n v hase'sn as te unite it hv means i the annular Heng@ Y (see Fig. l) h v helling* with thecylindrical Slmll of' ihe fuehennluiner of the prud* L' The m'n'eriicnsV3 are east inie'fral will:

he rep nl 'he hase, and upon lheae and en ilse annular flange V5 remixthe lwe hall Emailings upon which are huilt he "nelriek lining of theproducer.

The per11emlieulnr sides 0f he prnfhleer have il V4, which are helled tothe top and corner flanges VH #hi-rh zgllher. Asher-ins, er (u'her ce isinhfrpesed heweeu ihe opposing surf: is# in :mhling the sides :mul ffpHf the amare hase with the fuel. e011- ainPr. The "use is. Seefmslrnelezl thai :all he :ninos thereinto may he elogwrl, .su lha al'nrcecl inw the hase, n eunsflera i p2 me muy he nurniained in lliehaie and fuel container. By means nf the hlower 1"', in eonjuneien withthe exhauster G, .fr :y desirable pressure of nir lier emnhus' tien Juvhe muinfaiuerl in. lhe prmlu(` l und El fiieilllales he lufrnirlgF (ifeerialn hard i Xiure fuels. The prmlueer lun` means mr g fuels of rho.illesi varia- 'tien in ehrnzr'ler nml hir flrueruiing 'fuel gus nl:verk' :liverglnl {hernxir values.

The .#11313 ln urfvler 'lzafe ashes may he Crmwniei; vv remuvefl, l:wrange the suhhahe, lv. of ihe prlulurerr whieh if: malle of lfrifkazul runvrete, 'wi'rh a waei' seul prn viclesl willi .lip plaie whichue'" as e. suppnrl fel' lari hf' lhe musmiuv '-.vurli (il: the sulrhz,aL. well iw hn' prf.venl'iu' r ihe enirunee of through ihr water wail,'The inner sideA the :ahh-haw Slope lnwurll ils renier Sn lha ashes willgr "linie tu the eener. :nul eu thai. milj; :i relalivelv Small l :amenu'i 'it miler 1n ille waer .wal will he epnse t0 evapuraliuu il: a gaf:pnnr in hv- (lregen la wished. The shuveling' azrfahe Rl is in oneeenlinulubv plane u that ashes @un he Pnnvenienlly shuveleal freni TheSulhase. ln theh ra-e t where l uw in ihe prudueer a grate livilled inteer-liens, the uhhase is (lividi-l inlu as mamv Wale; seals as Thisshaking frate may l l l l 1 may he. it is usuali)v suppnrlefl and hel'lin plm-e in'lhe hfie (lf the prrulueer h v hehL' hehl in a leur leggedframe (see Vifrx. 5 uml S; whirh van he li l lulu its plaee under [helire openiull ai (he hellem nl' lhe f'xel container, ur willulrawufriuli the hase. The rmneis helfl in place hy Ineens uf (1m-ner hleelisVl, plaeell hetween the leg;- l`eel ainl the slle walls of the hase.(See Vig. The 'F1-nine. is ezlnqruelwl nf lhe lille pieces Y having thella! "e supruvrihV Y* (eee Fig. Q); fml the legs Y The legs are heh? inp0:\.il'ion h v helling in lhe aille pier s' :nul 'partlysupper-l.ihellungen Y. 'lfhegrah proper refts in thi frame al the tup nl' theflungl uppnrls Y, .funi the frate hars have frame nppmire lo and farlhefrein J nf the han* through which Un :u:- iuati j; :shaft A i5inherlueerl and suppui-lvl al, he l'rnnl o -llw prnfhu'er, l` ainnrverse har Z for surqmrli sgr the other exnl l (he actuating hal'i.Th :relu-lling' alla :a thus hehl n1 permanent. horn'fnual pugiuu,having a Separale haar nl .-uippnrl al eiiher elnl. On the aeluav'iuggjial'i i' ,ula\r-levire Z3, whirh i5 emula-raul h v :i link rf with theshaker-har Z1. Inside (he fille uf the hase is holle-ll retaining sleeveZi', and ouin-ille fhe hase-plate hulletl azul! her sleeve. '/f Fig. 2b)having :1v lria L'ulnr head 'for engagelnen willi the lov-1' parlv elthe grate dialing hzuulle. .l ily :z-varm nl (he lwn a;

:nlrr ing shall, is herA in p0.' whers the handle A is ewillaled theurl-iuting :hall is partly revuhefl und the nminn is em;- vexl In illeygruie hun- ZF uf the g'rzrie. l1: .Vlug 'fr l show :i mlnliiierl lnrui(if un' g'lllv v ilv'ing vleviee. invwlving un applica-V lun. nml Y*(luf-eel between (he grille hars and through the npr-ning euvel-eil hythe loer A2. A

Square l'nrni of girate haga the advantage of a leswxzel hrst enst, agrenier lurahili}-' of the :g1-alf' hars. and avuirk confusion when0rlerng renewals, hy having the grate bars all n? ene shape and size.Furthermore, hv having a square grate, the grate surface of as is shownin Fig. 4 and each section can` a large producer can he constructedinsections, in which case cach section would be placed over au individualsub-base pit such be'shaltcn sciiarately by hand without requiring unduemanual force. For the removal of any clinker that may, accumulate on thecorners of the square grate` special poke holes A5 are provided on thesides of the base, near the corners of the base immediately above thelevel of the grate surface. The grate hars Z are formed with cuttingedges which cut and, coxnininute clinlters that may he formed in theproducer; the action of the grate when the hars are rocl-zed being togrind the clinkers and' pass the ground material downward through thegrate.

The fuel Containern-The fuel-container is preferably iliade ofcylindrical shape; but under special conditions, especially where veryhard fuel is used, it may be made of rectangular form. In small sizediroducers, the fuel is usually fed from the top through one feedingdevice in the center of the producer; but in large generators a numberof feeding devices may be used in securing a better distribution of thefuel.L In other cases the fuel is fed from an annular magazine. The fuelfeeding conduit is preferably carried to a depth in the fuel-containerthat will prevent too unich fuel being fed onto the fuel bed, the depthof fuel that is desirable being determinable by the nature of the fuel.The fuel feeding conduit T, (sce Fig. 2) when fusing fuel is used isprotected by an annular non-conducting incasement T1 composed of heatrefractory material in which is .embedded a woven wire web to hold therefractory material together in case of cracking of the incasexnent. In

some cases I 'water-jacket the fuel feeding is usually made with a. castiron frame U5, embedded in the plaque. As a further pro conduit. Toprevent damage from too much heat to the top plate of the producer I mayintroduce a refractory plaque U, having poke holes U1, and cover slidesU2, which are operated by the handles U3. This plaque tection againstoverheating of parts, I may inject cool producer gas through theconduits A9 and `apertures A". I sometimes also may inject cool producergas at the base of the fuel container through the apertures A" to securea cooling effect around the pe- 'riphery of the fuel mass for preventingthe accumulation of clinhers on the fire-brick and preventing theformation of too much carbon dioxid at that pointe"r Using bituminousfuel: The form of producer 'shown in Figs. ,1 and 2 is especiallyadapted to the use of anthracite and other fuels of hard texture, havingsmall amounts of volatile constituents.' Bitumnous coal can be used init by careful management;

but I prefer to use a different principle in the construction andmanagement of a producer for the burnincf. of soft bituminous coal. Forthis special fuel, instead of applying old principles in preventing orgetting rid of the tar, which 1s so easily volat1l ized from such fuel,I adopt the principle of providing a producer having an unusually widefuel container or cylinder, and secure a long horizontal travel of theburning gases underneath the fuel bed, having a considerable part of thecombustion carried on at a point directly underneath the place where thefuel gravitates onto the fuel bed, and have the gaseousyproducts ofcombustion conveyed along underneath the fuel to a point where the fuelhas become more or less eolccd, and then have the gases risethrough thecoked fuel, and out through a gas exit; at a higher level in theproducer.

In this way I act more in accord with the than is gained by what iscalled the inverted combustion process, in which the volatilized gasesare drawn downwardly through the ignited fuel mass. A

In carrying out the principio I have stated, the fuel may be fed at thecenter of the producer, as in F ig. 7, in which case the combustionwould proceed from the center outwardly; or, the fuel may be fed from anannular feeding magazine at the periphery of the producer, as in Fig. 3;and the oombustion would proceed from the outside of the producer `to a.central point. T o secure satisfactory results in this connection, thecharacter of the grate used must be suited to each particular case.Where the fuel feeding is from the cimtei', I prefer to have a roungrate so constructed and arranged that a relatively large proportion ofthe air needed for gas generation would pass through the grate at ornear the center, while a rela.-

1 tively small proportion of the air would ass through the grate at. itsperiphery'. he

surface of the grate shouldv be arranged so that its agitation throughsuitable mechanical means would secure a centrifugal conveyance. of the'fuel. In case the fuel is fed periphcrally as in Fig. 8, more air wouldbe fed at the periphery of the grate, and Vlittle or no air would be fedat the center of the grate. In such cases, I prefer to have a solidplaque W of heat-refractory material placed in the grate at the centerto entirely prevent nir from passing throufrh the grate at that, point.In some cases, where the fuel used produces a small amount of ashes, iti's through the grate or ash-table provided. c

For this purpose'I prefer to use a clinker Provision must be made in allcases r check draft l, though less effectively, in the grinding grate.In thc form ot' producer! shown in l-`ig. T the gas passes through thecolo-d fuel at'tho peripher)` ot' thc fuel mass, thrrmgh the gaspassages Vv and through tho gas conduit lV", which is formed in the 1upper part of the refractory lining of the prmlucrr, and linally out"through thc exit Much tarrv Yapor is changed into a fixed gas b v beingbrought into Contact with the hot brit-l; work in which the` gaspassaf's "W" and W" are formed.

flzf: for Erftncon-luasinuch as there is always more or less tar carriedout with producer gas fe om thc zone ofY distillation of the fuel bed,i' iinrmiucc in my apparatus a means for highly heating the newly formedgas, decomposi gwater vapor in the gas, and burning' the. larry vaporsin the Vas, trans forming 'the vapors into a fixed gas. The principi(`involved is thaty ot' subjecting the newly tornai-d gas to a closnimpingenrcnt with the high coimentratcd heatJ formed by a llame-blastmechanically forced and concentrated over and on surfaces or matterscapable ot' being highly l Hated in the line, of travel of the newl)`formed after its gen eration in the producer. The thune used may he.formed y the prc-adnixture 0f a coinhust 'ole gi v sach as producer andair, one or other, or both, boing under me chanically produced pressure,and eithercoid or preheated. 'l'he carrying out. of this principle maybe practiced in various Ways. (lne method is indicated,liagrannnaticallyin the drznvix'igs by the devices B shown in Fig` l. This devicecontains a burner B, which is supplied with pre-mixed air and as throughthe gas conduits B* and B5 and me air conduit BT. The gas mabv belighted through the aperture B, or by elect ical ignition, or in otherways. An intense. heat is evolved by the burning flame, which heat :navbc moditied and wntrolled by the axnhunts of gas and air forced throughthe burner. or by means of the check draft B2 controlled by the airinlet B3. The llame -blast highly heats the refractory lining B", andthe gases emerging from the producer A are conveyed 'up around thcburner B, and follow the under side of the refractory lining B, thetarry vapor and water vapor in the gas bein transformed intoa fixed gasthrough high )eating of the newly formed gas. ln starting the burner,gas is taken from the storage tank X, which may be ot` any convenienttypo, and which is kept, charged by means of the gas cxhaustcr andblower (scc l"ig. Il). Air alone ma)v be injected in any desired way, asthrough the line of the travel of the gas to secure the dcslrcd change1n quality ofthe gas. and the arraugcawnt of thc burning device can beof l :my ot' numerous types. l prefer to inject Cleaned producer gasunder pressure, burn- 3 ing the gas with air; the injectivc etl'cct.carrying 1n a suliiclent amount of an' with the gas. If thc gas isforced directly from the gas exhanster and blower, when that, dc-

vicc stops runnin", injection of thc gas and air also nccessarilj."stops, as is do. table. But an auxiliary gas apply should he provided toburn the tarry vapors volatilizcd, when the blower (i is not running.

In some cases the device ius-t described may bc advantagemisly replacedby a 'fur-- nace burning tar-frcc colteiin two tru'nzufcs cylinders usedalternately, as in the usual method of ii'atcr gas. production. It willhe. understood that the special method employed in fixing the tarrivaporvaries with the nature of the fuel used and of the gas required. .'hcngas wanted high in therinic constituents, there would he intermissirnsin heating the tar destructor, followed bu." runs through it of the gasevolved in the gas generator. Having control of compressed air and ofthe steam supply, l can malte a gas that, is practically.' a water gashigh in hydrogen content, or one that is almost a pure car bon monoxidgas, or any admixturc of the two. When running a rich gas by theintermittent process, thel gas would be stored in a tank of sufficientsim to finnish a supply of gas c.-ntinuouslvv, bridging over the socath-d blowing periods.

sible heatr of the newly formed gas increased in passing though thedevice l. In

order to economize some of this heat, l pass l 4of the. heat o thehighly heated gases before the emerge through the. exitV C". The upperpart of thc devirc C: is connected with thc three-way mixing device. N.When using coni fuer having only slight tarry elcments, the device C isomitted, and the reta,- tively moderate heat of the newly formed gas isalmost entirely absorbed in the higher lcvcl of the device B, inwhichcase the mixing device N* is attached directly to the base of theproducer.

The nzwz'ny lavica-Phe mixing device N* (sce Figs. 2 and 3) is arrangedto inject as much compressed air, steam or gaseous 'products ofcombustion under the producer grate as may be needed, through'the actionof a forced air blast produced by the. blower F and forced through thepipes F* and N1 (scc Fig. 3). Exhaust' stt-.am is drawn through theconduit N from the upper part of the condenser M, which condenserreceives the exhaust steam from the engine L. The

x 1 gaseous products ot combustion are conveyed through the conduit N2from the bottom part of the economizer boiler K, and the relativeamounts of exhaust steam, air and cooled gaseous products of combustion,are controlled by suitable valves in the several conduits N, Nand N2,the injecting etl'ect of the 'compressed air forcing the exhaust steamand products of combustion and securing effective adxnixture of thegases and stcam. It will be.' obvious that through the use of thisdevice and connected parts, a large variation in the nature of the, gasproduced can be secured.

The gas coolen-The gas cooler D is used to cool thelgas, economize thegreater part of the balance of the sensible heat of the ncwl'yformed gasand in condensing any undccomposed tarry vapors and ammonia. vapors inpreparing the gas for the scrubber. The steam itany is produced in thisdevice, I usually utilize expansively in motor work in a mannerindicated in Fig. 3, and utilize the exhaust steam after its expansivework is accomplished in the generation of gas in the producer. The gascooler D is of special structure to provide against damage to theheating surfaces of the cooler from highly heated gases and sulfurcompounds. To provide against such damage, all the heating surfaces ofthe boiler proper are. submerged in water. Cold feed water enters thedevice through the inlet'DL3 into the water compartment D", and passesup through the water tubes D8 into the high level water space luider thesteam dome Dl. In case thisP device is-connected with a heating system,the hot water passes out of the outlet D2, while steam, either for poweror heating purposes, passes through the apertures'D. The hot gases passinto the device through the inlet D3, and down through it, and outJthrough the aperture D, progressively heating the feed 'ater whichasccnds through the tubes DS. B v having the gas cooler of sufficientsize, and using very cold feed-water for introduction into it, the heatof the new gas can be absorbed at a high level into the water while thetar vapors will be condensed on the water tubes at lower levels, andthus protect the heating surfaces from injury due to sulfur vapors. Ihave found this provision asatisfactory one in preparing producer gasfor use.

7 71e gas tanks-If low grade producer gas is being generated, and thisgas is only being burned in the gas engine of the system, no gasaccumulating tank would be necessary. But if a higher grade of gas isbeing pro.-

duced by the intermittentprocess of gas generation, or if the gas isburned otherwise than in the engine, a means for accumulating a smallstore of producer gas would be needed in the working of the apparatus instarting and to secure an even pressure in the delivery of the gas.

In the plant shewnin plan view in Fig. 3, the gas is drawn through theproducer, tar destructor, primary heater interchan er, gas cooler andscrubber by the suction e -ect of the internal combustion engine I, andthe exhausting effect of the exhaugter G, in connection with a moderateplenum effect of the air blower F blowing air into the base of theproducer. The gas, besides being used in various places for a number ofuses, as' Vfor example, in the engine I may be used in the burner J toeffect an auxiliary heating of water in the econornizer boiler K, alongwith'the heating of the water effected by the exhaust gases from theengine I, which are exhausted through the econoiuizing boiler Ii. Thesteam` which is generated in this boiler runs the steam engine L; andthe kinetic energy of this engine and that of the internal combustionengine I is yoked up by differential pulleys and belts through the shaftO. The motion of this shaft actuates the dynamo Q. The exhaust steamfrom the engine is either condensed in the condenser` M, cris injectedunder the. producer A along with more or less of the waste cooled gaseso combustion that have passed through the economizer boiler J, from theengine I. In such an installation there is a large economy in fuelcll'v-cted in creating power through the co-aclion of the variouselements in the plant.

[abrir/zing flu! gasp-If it is desired to eu rich the gas I blow intothe producer above the fuel or into an auxiliary heater. a hydrocarboncil through any of the inlets of the apparatus, us ,f the cleanedproducer gas forced b v thc gas compressor G, and usually Y blow theenricher in counter-current to the outgoing flow of the gas. Thisprocess of atomizeution b v blowing is dilferent from atoniization byspraying, the blowinginaking a more inist like spray or vapor. The gascarryingr this vap'or is then subjected to 110 heat to transform thevapor into a xed gas, in any of the methods suggested in thisapplication.

Subject matter is herein disclosed that is not here claimed but which isclaimed or will be claimed elsewhere.

'hat I claim as new is:

1. ln a gas generator. the combination of (l) a fuel container, (2l asectional base for supporting the fuel container` (3) a 120 sub-base forsupporting the sectional base, said sub-base comprising a water seal andmeans for the removal of ashes through the water seal, and (4) aremovable fuel .table or grate within the sectional base, said fueltable or grate being non-integral with the sectional base but resting onthe sub-base, said sectional base being composed in its entireelevational periphery of removable sections arranged for the assemblingor dis- '30 assembling' of the sections by movable bolts. one or more ofsaid sections being of sutileient .sis/.e io allor.' for illeinlrmlnction or removal ol said fuel laide or grate williontrlisnieinbernient of Said fuel table or grate.

In a gas generator. the Combination of (l) a i'nel eoniaiznfr, (z2) asquare babe. supportingr the fuel container. and (S) a fuel table orgrate in the inve non-integral with the liaae but reeling on the bottoniof the base` Said bane laiving detachable Sides of tixe 'full width andheight of llxe interior of the base. said sides being atlaeliaiile anddeljznflis, ille will: earn other. and witlr other pars of the has@ livremovable bolir'i.

il. in a gras gexwraior. time ronibinntion of (li :i cylindrical fueleontaiinr. said eoni iainer having ar the lower edge of its, shell lgrate or fuel table from said base, a .i ilang'iringv extexnling;-(.uivfvrilly from the renter of *die container. Q) a square liasesnpporling lne fuel container, said base eonzprising a square top pinkelr Ying a cenlrai lin-l opening. said opening' being equal in diameterand nnifnrniiy in alioeinent willi -llie inner swim-e of die iieli olthe fuel containing f viinderv1 lnvs project-gd toaard (lie Venter oftlie :goin-.iing-r from the lop plate into .said opening, a looe deadring resting; on the in`l laid dead ring Supporting a tire laiel liningfor the *ln-ei contnini-r. four aldea, each side lowing east integral(lien-with a horizontal top flange, a horizontal holten; flange, and-lb'J corner flanges, uuid' top and corner fla ige: being;

arranged lo aafeniflf by baiting with each, niize anni Wiili ille opplate ltform Said a grate in said bane, raid lwafe man)rising` openingsin 'die Sider; of lne imm: for the admission of "ir or oln. ganen tomici have. and for clean. lied resting mi .said grate. the ex l of thesquare top late being entirely or side of-'i the external surfaceof thecylindrical fuel container. A

4. In a gas generator, the combination of (l) a cylindrical fuelcontainer, a .v'quare seclienal base Supporting the fuel i .wpnn'eiii-we, and (o) r cont-amer, the Side sections of said hase lieing,rplaced peripherally outside a line perpendicnlarly outside. of the outerperiphery of the fuel container for giving room for the liorizontaieviennion of a grate surface supporting the fuel in said container, (3)a sub-base supporting the square lane, sani nnb-bane comprising surfacesfor precipitating; asin-a to a ventral part of the smbbase. a shim-lingmrt'aee dipping from with ont said base lo raid base and lo said cent'al part, and a dip plaie elim-ling a water seal for said onli-hasethrough ivliirlx .seal aalies are removeiL and (4) n grate resting onsaid :soli-hase.

ln a gas generator. tlm r-ombinalion of i (l) a fuel eoulaiiwr. (i) ahase supporiing i internal diameter of the eonlainer. and (3) the fueleonlainer, (il) a soli-linge supporti i i. r r i i i v ing the base.,A(4) a grate or fuel table`and a frame for tir; grate or fuel tzr-ble 1nsaid base but non-integral with said base, Said comprising means forholding said frate.

G. In a gas generator, the combination o- (l) a fue! evlinder, (Q) asectional square oase sizpporting tlie fuel cylinder, said basecomprising a movable section sntiiciently la: to provide for the removalf a framed grate. or fuel table frame in said base but non-integral withsaid base, and (4) a g ate or tuel taille in -ud frame.

in a gaf generator, the combmatlon 0f (l) a. base. l2) a uel containerresting on i, 92 c :sani .,isise, (o) a grate Asupporting the inel m aldcontainer, (el.) ineaoa for introducing an' and heat decreasing agentsunder the wrate, (5) means for introducing heat de,-

tlie fuel in iie container, (6) means for .econipoing vapors in the gasgenerated, and :nenas for f.-onlrolling; the pressure. of the. gas andvapors in the gas, under the grate in the {ne} container, angl in tinemeans for decomposing vapors.

In a gasgeneralor, the combination with the generator proper, of 1) aSquare eftional babe .suiiporting the generator propeig ('2) an ashsifting and clinker grinding grate in the have, and means 'for actuatingtnegra'e, said means cnnpris cng ineelianiam for actuating the. gratefrom witmmt the baSe and for preventing the escape of air or gas underpresaui'e in Said hase from .said liasse on the line of or in amneetionwith the means for actuating the grate.

f). In a gas generator, lh@ combination with a fuel eontainer. of asquare base supporting the eontainer and an asl; sifting and linkergrinding grate in the base, said grate eoinpriaing rocker liars havingvlinker,

cutting edges, roeker liar arms and inans for aetnaing the rocker bararinslfroxn without die hase. l#aid means beingV held pernianenllj.' 'none linrixontal position h v two points ofsappia-t. said. bars beinggiven n'nrtion frein uniside the base. and means for preventing eseapeof air and other gas from lie base along the line of the ar'lnatingmeans.

l0. ln a gas generaol-.llm efanlwination of. (l) n Square foin' sidedsei-tional base, ("1) a vlindrival fuel eontainery renting' on [hn haar.having a lou-vr opening of the full creasing agents above the grate and.alpiove sides 0f the base being-perpendicular to vertical llneslaterally outside of said grate.

JOSEPH MOSES WARD KITCHEN.

